3. Nutritional status of pregnant and lactating women: Anthropometric measurements will be collected to assess initial nutritional status and subsequent weight gain during pregnancy. Weight, height and MUAC of pregnant women will be measured at enrolment, with weight and MUAC measured again at 6th and 8th month of pregnancy, and postnatal follow-up visits. Weight will be measured using an electronic weighing scale of Tanita with a precision of 10 gm. Surgical and medical product (NSW, Australia) height measuring scale will be used for measuring height of pregnant women. MUAC would be measured with a standardised MUAC tape for adults.